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App Store Apps > Business > Clamp Pro
Clamp Pro icon

Clamp Pro

by Contractor School · Business · Free
On the App Store since April 2026 · Data updated 2026-11-06

Clamp Pro is made and published by Contractor School. AppBrain is an independent app data site and isn't affiliated with Contractor School. The app name, icon, screenshots and description belong to Contractor School and are shown as published on the App Store.

AppBrain's verdict

Rating on App Store
4.80
5 ratings
Last updated
October 31, 2026
Size
104.7 MB

It doesn't have enough ratings yet to judge what users think.

Official page on the App Store

User feedback

Ratings and reviews on the App Store

Comments on Clamp Pro for iOS

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Store listing

By Contractor School, from the App Store
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Screenshots by Contractor School, from the the App Store listing
Description by Contractor School Written by the developer, not by AppBrain. Click to read.
Clamp runs the whole job from your phone: the estimate, the proposal, the contract, change orders and the final invoice, with a customer portal for e-signing and your mileage and time on site tracked for you.

ONE WORKFLOW, FIRST CALL TO FINAL INVOICE
- Five documents, each built from the one before it: design agreement, estimate, proposal, change order, invoice
- Change orders update the signed contract, so verbal changes stop costing you
- Payment schedules: a deposit, milestones and a final payment, each invoiced from the contract
- Sales tax at the rate you enter, plus customer credits and refunds
- Every status in one place: sent, signed, invoiced, outstanding, paid
- Punch lists that close the job out, shared by text or PDF

DESCRIBE THE JOB. GET AN ESTIMATE.
- Type the job the way you would say it out loud and get an itemized, priced draft back
- Remodels and new homes: one estimator detects which you described
- Every line broken out by trade, with assemblies, quantities, rates and labor hours you can inspect
- Revise the draft with a follow-up prompt, then save your own rates and templates

QUICK CLAMP: FAST ESTIMATES AND FREE TOOLS
- Ballpark a job: a price range, labor hours and every line by trade, at three markup levels
- Free tools, no plan needed: a sketch pad, a level with plumb and slope, checklists with templates, and a scanner for cards, notes and receipts
- 3 free AI credits; buy credit packs in the app

CUSTOMER PORTAL AND E-SIGNING (ASSISTANT AND TEAMS)
- The homeowner opens a link and sees their job. No password, no app
- E-signing on their phone, with up to five signers per document
- Project updates, photos and decisions they answer from their phone
- Appointment reminders by email that customers can confirm

MILEAGE AND TIME ON SITE, TRACKED FOR YOU
- Drives detected by GPS in the background; you review each trip before it counts
- Time on site logged automatically when you arrive at and leave a saved job site
- IRS mileage rates applied, ready for tax time

KNOW WHAT THE JOB COST
- Receipts, purchase orders and vendor bills tied to the job that caused them
- Budget from the estimate against what you have spent, by labor, materials and subs
- An accountant export package at tax time

THE SCHEDULE (ASSISTANT AND TEAMS)
- Installs, deliveries, inspections and work days on each job in the Jobsites tab
- Custom schedule types and email reminders
- With Teams, crew and subs on the shared schedule: they confirm or propose dates and share photos

KNOW WHERE EVERYTHING STANDS
- A daily briefing of overdue invoices, follow-ups, appointments and open proposals
- Sales on Home: close rate, revenue won, open pipeline and why leads were lost
- Close rate by lead source, so you know which sources turn into work
- Five-factor lead scoring before you drive: a clear yes, no or maybe

WORK AS A TEAM (TEAMS)
- Up to 10 accounts on one business, each with their own sign-in and one of five roles
- Unlimited subs, free for them and never a seat

YOUR DATA
- Leads, documents, photos, mileage, time, receipts and job costing work offline
- AI estimates, the portal, e-signing, email, Teams, cloud backup and the web view need a connection
- No account needed to start
- Backup, restore, CSV export and bulk import

PLANS
Every account gets 3 free AI credits. Solo: the full job workflow, offline, with device backup. Assistant adds the customer portal, e-signatures, the job schedule, cloud backup, email reminders, a read-only web view and 25 AI credits a month. Teams adds up to 10 accounts, the shared schedule, unlimited sub invites and 50 AI credits a month shared by the team. An estimate is 1 credit; a revision is half.

Try Solo monthly free for one month.

Terms of Use: https://clamppro.com/terms/
Privacy Policy: https://clamppro.com/privacy/

This app is also governed by Apple's standard End User License Agreement:
https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Official page on the App Store Also on Google Play

Safety and technology

Found in the app by AppBrain
Price
Free
App size
104.7 MB
Content rating
Everyone

Technologies used by Clamp Pro

Releases

Updates seen on the App Store
Version
2.1.4
Launched
April 2026

No changelog data

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Rankings

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This app is not ranked

About the app and developer

About Clamp Pro

Clamp Pro is a business app developed by Contractor School.

What is the rating of Clamp Pro?

Clamp Pro is rated 4.80 out of 5 stars, based on 5 ratings.

Is Clamp Pro free?

Clamp Pro is free. The app size is 104.71 MB. The latest version available is 2.1.4. The last update was on October 31, 2026.

What are the requirements for Clamp Pro?

The app has a content rating of Everyone. The app has been available on the App Store since April 2026.

Developer information for Contractor School

Contractor School

Address:

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